Just curious - do you have to turn the wah on via one of the switches then the wah becomes active and you then use the expression pedal?

I ask because right now I use a Rocktron MidiMate which does not have an expression pedal. It works fine enough for switching presets and giving me direct on/off toggle to effects. I use a L6 M9 in the 11R FX Loop and have an expression pedal for that. I use the wah in the M9. It's a similar deal - turn the wah on with a regular stomp box style switch then move to the expression pedal. I was considering moving to a FCB1010 to avoid that clunky implementation - but it sounds like it operates exactly the same.